Stream macroalgae of Hawai`i: an identification guide - Hawaii.gov
Stream macroalgae of Hawai`i: an identification guide - Hawaii.gov
Stream macroalgae of Hawai`i: an identification guide - Hawaii.gov
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Rhizoclonium<br />
Classification: Chlorophyta (Family<br />
Cladophoraceae)<br />
General habit: unbr<strong>an</strong>ched filaments that resemble<br />
<strong>an</strong> unbr<strong>an</strong>ched Cladophora, yellow-green to grassgreen<br />
or dark green in color, c<strong>an</strong> form tufts or dense<br />
mats, attached to rock or vegetation<br />
Species in Hawai‘i: R. crassipellitum, R.<br />
hieroglyphicum, R. hookeri<br />
Isl<strong>an</strong>d distribution: Kaua‘i, O‘ahu, Maui, Hawai‘i<br />
Distinguishing features: filaments generally<br />
unbr<strong>an</strong>ched, uniform in diameter along the length<br />
<strong>of</strong> the filament (except for the apical cell),<br />
chloroplast a dense network that <strong>of</strong>ten appears to<br />
fill the cell<br />
Compare with: Cladophora, Oedogonium<br />
32<br />
A. A mat <strong>of</strong> Rhizoclonium viewed under a dissecting<br />
microscope. Scale bar = 500µm. B. Unbr<strong>an</strong>ched<br />
filaments. Scale bar = 50µm. C, D. Cells<br />
<strong>of</strong> Rhizoclonium illustrating the dense, reticulate<br />
chloroplast. Scale bar = 50µm (C), 30µm (D).
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